Characterization of a Na+-Ca2+ exchanger NCX1 isoform in bovine fasciculata cells of adrenal gland.
Mol Cell Biochem
; 218(1-2): 41-5, 2001 Feb.
Article
en En
| MEDLINE
| ID: mdl-11330836
ABSTRACT
The Na+-Ca2+ exchanger (NCX) is well known to regulate intracellular Ca2+ concentration in many excitable cells. To date, three members of the NCX exchanger gene family have been identified NCX1, NCX2 and NCX3. In zona fasciculata of the bovine adrenal gland, a Na+-Ca2+ exchanger has been recently found to display biochemical similarities with the NCX1 exchanger of renal basolateral cells. Although a Na+-Ca2+ exchanger has already been characterized in zona medulla of adrenal gland, such an exchanger has never been studied in the adrenal cortex. Thus, we have used a reverse transcriptase-polymerase chain reaction (RT-PCR) assay with specific NCX primers on fasciculata cell cultures. The sequencing of the amplified fragment revealed, for the first time, the presence of a NACA3 isoform of the NCX1 exchanger in the adrenal cortex, similar to the one found in adrenal chromaffin cells and in renal cortex. This isoform is 92 and 94% identical in the portion compared with kidney Na+-Ca2+ exchanger NACA3 of rat and pig, respectively.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Zona Fascicular
/
Intercambiador de Sodio-Calcio
Límite:
Animals
Idioma:
En
Revista:
Mol Cell Biochem
Año:
2001
Tipo del documento:
Article
País de afiliación:
Francia